diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index eb4b543d38..62727e039a 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -305,6 +305,12 @@ Changelog
  * Fix: Prevent delete button showing on collection / workflow edit views when delete permission is absent (Helder Correia)
 
 
+2.11.9 (24.01.2022)
+~~~~~~~~~~~~~~~~~~~
+
+ * Fix: Update Pillow dependency to allow 9.x (Rizwan Mansuri)
+
+
 2.11.8 (17.06.2021)
 ~~~~~~~~~~~~~~~~~~~
 
diff --git a/CONTRIBUTORS.rst b/CONTRIBUTORS.rst
index 46d1073a6e..599f280d3b 100644
--- a/CONTRIBUTORS.rst
+++ b/CONTRIBUTORS.rst
@@ -552,6 +552,7 @@ Contributors
 * Kyle Bayliss
 * Justin Michalicek
 * Vu Pham
+* Rizwan Mansuri
 
 Translators
 ===========
diff --git a/docs/releases/2.11.9.rst b/docs/releases/2.11.9.rst
new file mode 100644
index 0000000000..e018f434e8
--- /dev/null
+++ b/docs/releases/2.11.9.rst
@@ -0,0 +1,16 @@
+============================
+Wagtail 2.11.9 release notes
+============================
+
+.. contents::
+    :local:
+    :depth: 1
+
+
+What's new
+==========
+
+Bug fixes
+~~~~~~~~~
+
+ * Update Pillow dependency to allow 9.x (Rizwan Mansuri)
diff --git a/docs/releases/index.rst b/docs/releases/index.rst
index 870854f00d..0246bbe890 100644
--- a/docs/releases/index.rst
+++ b/docs/releases/index.rst
@@ -24,6 +24,7 @@ Release notes
    2.12.2
    2.12.1
    2.12
+   2.11.9
    2.11.8
    2.11.7
    2.11.6